If you are not offended with the joke, laugh with all your heart. If you are offended by the joke, but are in a setting in which you cannot profoundly express your displeasure at the joke, then you should excuse yourself and move on. If you are in a situation in which you can express your displeasure, then do so tactfully. or...Study the master... Sid James he of the Carry On movies.
a laugh, as a comedian might get after telling a joke
The butt of a joke is the part you laugh to death in!
Jokebutton.com is the best joke site i have been on
if the joke is funny, you laugh.. if it's not, you don't laugh..
You can make someone laugh by telling jokes, sharing funny stories, or using humor in your conversation. Pay attention to the person's sense of humor and try to tailor your humor to their liking. Additionally, being lighthearted and cheerful can help create a positive atmosphere that encourages laughter.
Its just random! He may laugh when the joke is not funny, he may be bored if the joke is great!
Just apologise and laugh it off. Make a joke out of it if you can.
You should find out what he is interested in and talk about that. Don't laugh unless he makes a joke or is trying to be funny.
Joke
you tell them a joke.
joke
to make people laugh.